BE AT A LOOSE END (OR N. AMER. AT LOOSE ENDS)
Meaning of BE AT A LOOSE END (OR N. AMER. AT LOOSE ENDS) in English
be at a loose end ( or N. Amer. at loose ends)
have nothing specific to do.
→ loose end
Concise Oxford English vocab.
Сжатый оксфордский словарь английского языка.
2004